Automotive Low Dropout (LDO) Linear Voltage Regulator OPTIREG™ TLS820D2EL VSE application circuit for 5.0 V output voltage

Open online SPICE simulator circuit link: atv_LDO_TLS820D2ELVSE_application_circuit.tsc

Automotive Low Dropout Linear Voltage Regulator TLS820D2ELVSE
Application Circuit

The OPTIREG™ linear TLS820D2ELVSE is a linear voltage regulator with high performance, very low dropout
voltage and very low quiescent current.

With an input voltage range of 3 V to 40 V and very low quiescent current of only 20 µA, this regulator is
perfectly suitable for automotive or other supply systems permanently connected to the battery.

The new loop concept combines fast regulation and very high stability while requiring only one small ceramic
capacitor of 1 µF at the output. At output currents below 100 mA the device has a very low dropout voltage of
only 100 mV (for an output voltage of 5 V) and 120 mV (for an output voltage of 3.3 V). The operating range
starts at an input voltage of only 3 V (extended operating range). This makes the TLS820D2ELVSE suitable for
automotive systems that need to operate during cranking condition.

Thermal model description:
THERMAL_MODEL = 1: PG-SSOP-14 1s0p 600mm2 cooling area
THERMAL_MODEL = 2: PG-SSOP-14 1s0p 300mm2 cooling area
THERMAL_MODEL = 3: PG-SSOP-14 1s0p, footprint
THERMAL_MODEL = 4: PG-SSOP-14 2s2p
THERMAL_MODEL = 10: No self-heating, only TEMP value used as a temperature

Model performance :
- dynamic behavior (start-up, PSRR)
- static behavior is modelled by approximation to the real behavior of the device
over temperature
- the thermal simulations represent an approximation of the actual thermal
behavior of the device according to the JEDEC standards at Power = 1W
and Ambient Temperature = 85 °C